Search | SciELO

Need help?

Add field +

Search history

No documents were found for your search

Results: 25

au:Ferreira, Pedro L

Filters

Collection + Options

All
Brazil

20
Public Health

3
Colombia

1
Paraguay

1

Journal + Options

All
Revista de Saúde Pública

6
Journal of the Brazilian Chemical Society

2
Memórias do Instituto Oswaldo Cruz

2
Revista Caatinga

2
Alea: Estudos Neolatinos

1
Brazilian Archives of Biology and Technology

1
Brazilian Journal of Nephrology

1
Ciência Florestal

1
Ciência e Agrotecnologia

1
Crop Breeding and Applied Biotechnology

1
Memorias del Instituto de Investigaciones en Ciencias de la Salud

1
Revista Brasileira de Engenharia Agrícola e Ambiental

1
Revista Brasileira de Meteorologia

1
Revista Ceres

1
Revista Ciencias de la Salud

1

Show all...

Language

All
Portuguese

12

Publication Year + Options

All
2016

7
2024

5
2010

3
2019

3
2022

2
2023

2
2002

1
2012

1
2015

1

SciELO Thematic Areas + Options

All
Health Sciences

12
Agricultural Sciences

8
Biological Sciences

4
Exact and Earth Sciences

3
Literature and Arts

1
Multidisciplinary

1

WoS Subject Categories + Options

All
Health

8
Environmental

6
Sciences

5
Agriculture

4
Agronomy

4
Multidisciplinary

4
Occupational

4
Public

4
Services

4
Forestry

3
Medicine

3
Policy

3
Sociology

3
Animal

2
Chemistry

2

Show all...

WoS Citation Index + Options

All
Science Citation Index Expanded

10
Social Sciences Citation Index

5
Arts Humanities Citation Index

1

Citables and non citables

All
Citable

25

Type of Literature + Options

All
Article

24
Rapid communication

1

Order by

Page of 2 Next

Select this page

Print | Send to email | Export |

Facebook
Twitter
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

0 Selected itens

List all
Erase all

Organic residue controls Meloidogyne javanica and improves gas exchange and development in the gilo
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Luam

; Silva, Rodrigo Vieira da

; Gondim, João Pedro Elias

; Rodrigues, Rhayf Eduardo

; Ferreira, Luis Leonardo

Revista Ciência Agronômica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 55 elocation e20218054

Abstract: En | Text: En | PDF: En

ABSTRACT Root-knot nematodes cause a significant reduction in the productivity of the gilo due to physiological stress. Incorporating organic residue into the soil has a positive effect in reducing nematode infestation. The aim of this study was to evaluate the effect of the addition of organic residue on the reproduction of Meloidogyne javanica and its role in the physiology of the gilo. One-litre pots, each containing one gilo seedling, were inoculated with 5000 eggs of M. javanica and the following treatments evaluated: 1) no inoculation and no residue (NIR); 2) NIR; 3) 12.5 g L-1 poultry manure; 4) 25 g L-1 cattle manure; 5) 20 g L-1 filter cake; 6) 5 g L-1 of the shoots of Tagetes patula; 7) 6.25 g L-1 of the shoots of Brassica oleracea var. capitata; 8) 20 mL L-1 vinasse and 9) 1 mL Abamectin-based commercial product (18 g L-1 a.i.). A randomised block design was used, with six repetitions. Gas exchange variables were evaluated 15, 30 and 45 days after inoculation with the nematode (DAI) and the vegetative and nematological variables at 60 DAI. The treatments that included cattle manure and filter cake afforded the best physiological rate and development in the gilo. The best results in controlling the nematode were given by the poultry manure, cattle manure and filter cake, reducing the reproduction of M. javanica by 41.76, 51.44 and 52.40%, respectively. Based on the results, poultry manure, cattle manure and filter cake are efficient in controlling M. javanica and show potential to be used in the integrated management of M. javanica in the gilo. Rootknot Root knot stress infestation Onelitre One litre pots seedling 500 M NIR (NIR) 2 3 125 12 12. L1 L L- 4 6 patula 7 625 6.2 var capitata 8 9 Abamectinbased Abamectin based 18 (1 a.i.. ai a.i. . i a.i.) repetitions 15 DAI (DAI 4176 41 76 41.76 5144 51 44 51.4 5240 52 40 52.40% respectively 50 (NIR 62 6. ( a.i 417 41.7 514 51. 524 52.40 41. 52.4 52.

https://doi.org/10.5935/1806-6690.20230061

Toxic Effects of Multiwalled Carbon Nanotubes on the Zebrafish (Danio rerio) and the Brine Shrimp (Artemia salina): a Morphological, Histological, and Immunohistochemical Study Danio rerio Artemia salina salina) Morphological Histological
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Souza, Jéssica Peres Alves de

; Silva, Isabella Ferreira

; Carneiro, Pedro Gontijo

; Schnitzler, Mariane Cristina

; Thomé, Ralph Gruppi

; Santos, Hélio Batista dos

Brazilian Archives of Biology and Technology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 67 elocation e24230143

Abstract: En | Text: En | PDF: En

Abstract We describe the toxicity of multiwalled carbon nanotubes (MWCNTs) in two aquatic species: Danio rerio and Artemia salina. Fish were exposed to 25 mg L-1, 50 mg L-1, and 100 mg L-1 MWCNTs for 7 days. After exposure, the gills from D. rerio showed lamellar fusion and epithelial lifting in the secondary lamellae, and vasodilation in the primary lamellae. In the gills, heat shock protein 70 and Bax (pro apoptotic member) were stained more intensely in the treated groups than in the control group. The nauplii of A. salina were exposed to 25 µg L-1, 50 µg L-1, and 100 µg L-1 MWCNTs for 96 h. After exposure, the nauplii from the control group presented 20 % mortality, whereas the 25 µg mL-1, 50 µg mL-1, and 100 µg L-1 groups had 46.7 %, 70 %, and 100 % mortality, respectively. The nauplii exposed to 25 µg mL1 and 50 µg mL1 MWCNTs had black aggregates in the intestine because of the uptake of nanomaterials. In addition, the 25 µg mL-1 and 50 µg mL-1 MWCNT groups had black aggregates attached onto the body surface, appendages of the second pair, and mandibles.The results revealed the toxic effects of MWCNTs on the two aquatic organisms, and both species showed great potential for toxicological evaluation of MWCNTs in aquatic environments. (MWCNTs 2 L1, L1 L 1, 1 5 10 L- days exposure D lamellae pro member A 9 h mortality mL1, mL 467 46 46. respectively nanomaterials addition mL- surface pair mandiblesThe mandibles organisms environments 4

https://doi.org/10.1590/1678-4324-2024230143

Estimation of Soybean Evapotranspiration Using SSEBop Model with High-Resolution Imagery from an Unmanned Aerial Vehicle HighResolution High Resolution
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Casari, Raphael Augusto das Chagas Noqueli

; Neumann, Marina Bilich

; Ribeiro Junior, Walter Quadros

; Olivetti, Diogo

; Tavares, Cássio Jardim

; Pereira, Lucas Felisberto

; Ramos, Maria Lucrécia Gerosa

; Pereira, André Ferreira

; Silva Neto, Sebastião Pedro da

; Roig, Henrique Llacer

Revista Brasileira de Meteorologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 39 elocation e39240007

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Evapotranspiration (ET) is one of the most important processes in the hydrologic cycle, constituting the main responsible for water losses at the surface. Several evapotranspiration models use information from surface temperature and vegetation indices captured by remote sensors such as MODIS and LANDSAT to estimate the ETc value. The objective of this study is to apply SSEBop model to estimate ETc of soybean in a field experiment under four water regimes, using high-resolution multispectral and thermal images collected from remotely piloted aircraft (RPA). Surface temperature and NDVI maps were generated as sources for evapotranspiration estimation. From a Python script, spatial variability maps of ETc were generated at different phenological stages of the crop. The quality of the model for ETc estimates was performed by comparing the modeling results with leaf transpiration data measured in the field using an infrared gas analyzer, whose results showed a good correlation (R2 = 0.76). These results demonstrated the possibility of transferring a model originally developed for processing low to medium-resolution satellite images to high-resolution spatial-temporal images acquired by RPA with small adaptations in the original algorithm, generating great potential for new studies on an experimental and field scale. ET (ET cycle value regimes highresolution high resolution RPA. . (RPA) estimation script crop analyzer R2 R (R 0.76. 076 0.76 0 76 0.76) mediumresolution medium spatialtemporal temporal algorithm scale (RPA 07 0.7 7 0.

Resumo A evapotranspiração (ET) é um dos mais importantes processos do ciclo hidrológico, constituindo-se o principal responsável pelas perdas de água na superfície. Vários modelos de evapotranspiração utilizam informações da temperatura da superfície e índices de vegetação captadas por sensores remotos tais como o MODIS e a série LANDSAT para estimar o valor de ETc. O objetivo deste estudo aplicar o modelo SSEBop para estimativa da ETc da soja (Glicine max. L) em um campo experimental submetida a quatro regimes hídricos, utilizando imagens multiespectrais e termais de alta resolução coletadas com uso de aeronave remotamente pilotada. Mapas de temperatura da superfície e NDVI foram gerados como fontes para a estimativa da evapotranspiração. A partir de um script em Python, mapas de variabilidade espacial da ETc foram gerados para diferentes estádios fenológicos da cultura. A qualidade do modelo de estimativas de ETc foi realizada comparando-se os resultados da modelagem com os dados transpiração foliar medida no campo através de um analisador de gases por infravermelho, cujos resultados mostraram boa correlação (R2 = 0,76). Estes resultados demostraram a possibilidade de transferência de um modelo originalmente desenvolvido para processamento de imagens de satélite de baixa a média resolução para imagens de alta resolução espaço temporal adquiridos por RPA a partir de pequenas adaptações no algoritmo original, gerando um grande potencial para novos estudos em escala experimental e de campo. ET (ET hidrológico constituindose constituindo se Glicine max L hídricos pilotada Python cultura comparandose comparando infravermelho R2 R (R 0,76. 076 0,76 . 0 76 0,76) original 07 0,7 7 0,

https://doi.org/10.1590/0102-77863910007

Prognostic value of programmed cell death ligand 1 (PD-L1) expression in patients with stage III non-small cell lung cancer under different treatment types: a retrospective study PDL1 PDL PD L1 L (PD-L1 nonsmall non small types (PD-L
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Castro, Nicoly Marques de

; Moura, Fernando

; Hada, Aline Lury

; Garcia, Diogo

; Victor, Elivane da Silva

; Schvartsman, Gustavo

; Carvalho, Leonardo

; Fernandes, Milena Lourenço Coleta

; Martins, Rodrigo de Souza

; Silva, Elaine Ferreira da

; Santos, Sarah Silva Mello Batista dos

; Taniwaki, Letícia

; Taranto, Patrícia

; Pontes, Janaina

; Beal, Juliana Rodrigues

; Dutra, Ana Carolina Pereira

; Oliveira Filho, João Bosco de

; Araujo, Sérgio Eduardo Alonso

; Usón Junior, Pedro Luiz Serrano

einstein (São Paulo)

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 22 elocation eAO0575

Abstract: En | Text: En | PDF: En

ABSTRACT Objective Currently programmed cell death protein 1 (PD-1) inhibitors in combination with other therapies are being evaluated to determine their efficacy in cancer treatment. However, the effect of PD-ligand (L) 1 expression on disease outcomes in stage III (EC III) non-small cell lung cancer is not completely understood. Therefore, this study aimed to assess the influence of PD-L1 expression on the outcomes of EC III non-small cell lung cancer. Methods This study was conducted on patients diagnosed with EC III non-small cell lung cancer who underwent treatment at a tertiary care hospital. PD-L1 expression was determined using immunohistochemical staining, all patients expressed PD-L1. Survival was estimated using the Kaplan-Meier method. Relationships between variables were assessed using Cox proportional regression models. Results A total of 49 patients (median age=69 years) with EC III non-small cell lung cancer and PD-L1 expression were evaluated. More than half of the patients were men, and most were regular smokers. The patients were treated with neoadjuvant chemotherapy, surgery, or sequential or combined chemotherapy and radiotherapy. The median progression-free survival of the entire cohort was 14.2 months, and the median overall survival was 20 months. There was no significant association between PD-L1 expression and disease progression, clinical characteristics, or overall survival. Conclusions PD-L1 expression was not correlated with EC III non-small cell lung cancer outcomes. Whether these findings differ from the association with immune checkpoint inhibitors remains to be addressed in future studies. PD1 PD (PD-1 However PDligand ligand L (L nonsmall non small understood Therefore PDL1 PDL L1 PD-L hospital staining PDL1. L1. KaplanMeier Kaplan Meier method models 4 age69 age 69 age=6 years men smokers surgery radiotherapy progressionfree progression free 142 14 2 14. months characteristics studies (PD- age6 6 age= (PD

https://doi.org/10.31744/einstein_journal/2024ao0575

Leishmania (Sauroleishmania) tarentolae versus pathogenic species: comparative evaluation of protease activity, glycoconjugates, resistance to complement and metabolome composition Sauroleishmania (Sauroleishmania species activity glycoconjugates
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Andrade, Filipe Fideles Duarte

; Vitório, Jéssica Gardone

; Canuto, Gisele André Baptista

; Nunes, Fernanda Freire Campos

; Rodrigues, Isabela Aurora

; Almeida, Ana Paula Martins Morais

; Nascimento, Frederico Crepaldi

; Costa, Adriana Oliveira

; Vieira, Tamara da Silva

; Silva, Ana Carolina Carvalho

; André, Leiliane Coelho

; Gontijo, Célia Maria Ferreira

; Junqueira, Caroline

; Toledo, Juliano Simões de

; Fernandes, Ana Paula

; Soares, Rodrigo Pedro

Memórias do Instituto Oswaldo Cruz

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 119 elocation e230243

Abstract: En | Text: En | PDF: En

BACKGROUND Leishmania tarentolae is a non-pathogenic species found in lizards representing an important model for Leishmania biology. However, several aspects of this Sauroleishmania remain unknown to explain its low level of virulence. OBJECTIVES We reported several aspects of L. tarentolae biology including glycoconjugates, proteolytic activities and metabolome composition in comparison to pathogenic species (Leishmania amazonensis, Leishmania braziliensis, Leishmania infantum and Leishmania major). METHODS Parasites were cultured for extraction and purification of lipophosphoglycan (LPG), immunofluorescence probing with anti-gp63 and resistance against complement. Parasite extracts were also tested for proteases activity and metabolome composition. FINDINGS Leishmania tarentolae does not express LPG on its surface. It expresses gp63 at lower levels compared to pathogenic species and, is highly sensitive to complement-mediated lysis. This species also lacks intracellular/extracellular activities of proteolytic enzymes. It has metabolic differences with pathogenic species, exhibiting a lower abundance of metabolites including ABC transporters, biosynthesis of unsaturated fatty acids and steroids, TCA cycle, glycine/serine/threonine metabolism, glyoxylate/dicarboxylate metabolism and pentose-phosphate pathways. MAIN CONCLUSIONS The non-pathogenic phenotype of L. tarentolae is associated with alterations in several biochemical and molecular features. This reinforces the need of comparative studies between pathogenic and non-pathogenic species to elucidate the molecular mechanisms of virulence during host-parasite interactions. nonpathogenic non However L glycoconjugates amazonensis braziliensis major. major . major) LPG, , (LPG) antigp63 antigp anti gp anti-gp6 complement surface gp6 complementmediated mediated lysis intracellularextracellular intracellular extracellular enzymes transporters steroids cycle glycineserinethreonine glycine serine threonine glyoxylatedicarboxylate glyoxylate dicarboxylate pentosephosphate pentose phosphate pathways features hostparasite host parasite interactions (LPG antigp6 anti-gp

https://doi.org/10.1590/0074-02760230243

O retrato móvel de uma alma errante: Clarice Lispector tradutora de Oscar Wilde errante
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ferreira, Rony Márcio Cardoso

; Macedo, Pedro Guilherme Lopes de

Alea: Estudos Neolatinos

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jan 2023, Volume 25 N. 1 Pages 35 - 55

Abstract: Fr Pt En | Text: Fr Pt En | PDF: Fr | PDF: Pt | PDF: En

Résumé En partant des postulats de la Littérature Comparée, des Études Culturelles et des Études de Traduction, nous cherchons à comprendre des relations culturelles qui étaient significatives pour Clarice Lispector en termes de sa formation (Bildung) linguistique, identitaire, culturelle et de traduction, avec le but d’établir un dialogue entre le roman A hora da Estrela (2020), publié en 1977 et la traduction de The Picture of Dorian Gray [O Retrato de Dorian Gray (2016)], signée par Clarice en 1974. En commençant par sa relative proximité avec l’imaginaire juif, sa connaissance d’Anglais, Français et Espagnol, nous pouvons comprendre Clarice comme une traductrice culturel. Parmi plusieurs connexions que nous pouvons tracer dans le roman de Clarice, les questions qui concernent les possibilités et les limites de la représentation littéraire et visuel nous ont permis de le lire en comparaison avec le roman de Wilde. Comparée Traduction Bildung (Bildung linguistique identitaire détablir d établir 2020, 2020 , (2020) 197 O 2016, 2016 (2016)] 1974 limaginaire l imaginaire juif dAnglais, dAnglais Anglais, Anglais d’Anglais Espagnol culturel Wilde 202 (2020 19 201 (2016) 20 (202 1 (2016 2 (20 (201 (2 (

Resumo Amparados nos pressupostos da Literatura Comparada, dos Estudos Culturais e dos Estudos da Tradução, procuramos compreender as relações culturais que formaram (Bildung) Clarice Lispector em termos de sua identidade linguística, cultural e tradutória, a fim de estudar a tradução do romance O retrato de Dorian Gray (2016), assinada por Clarice em 1974 em diálogo com a sua novela de 1977, A hora da estrela (2020). Partindo da sua relativa proximidade com o imaginário judaico ao seu conhecimento do inglês, francês e espanhol, podemos entender Clarice como uma tradutora cultural. Dentre as várias conexões culturais que pudemos traçar no interior da novela de Clarice, as questões relativas às possibilidades e aos limites da representação literária e visual nos permitem lê-la em comparação com o romance de Wilde. Comparada Tradução Bildung (Bildung linguística tradutória 2016, 2016 , (2016) 197 1977 2020. 2020 . (2020) inglês espanhol lêla lê la Wilde 201 (2016 19 202 (2020 20 (201 1 (202 2 (20 (2 (

Abstract Drawing on premises from Comparative Literature, Cultural Studies and Translation Studies, this paper seeks to understand the cultural relations that played a significant part in shaping Clarice Lispector’s linguistic, cultural and translational identity (Bildung), intending to establish a dialogue between the novel The Hour of the Star (2020), first published in 1977, and Clarice’s translation of The Picture of Dorian Gray [O Retrato de Dorian Gray (2016)], penned by Clarice in 1974. Starting from her relative closeness to the Jewish imaginary to her knowledge of English, French and Spanish, we can understand Clarice as a cultural translator. Among the various cultural connections, we can trace inside Clarice’s novel, the issues concerning the possibilities and the limits of literary and visual representation allows us to read Clarice’s novel tracing a comparison with Wilde’s novel. Literature Lispectors Lispector s linguistic Bildung, Bildung , (Bildung) 2020, 2020 (2020) 1977 Clarices O 2016, 2016 (2016)] 1974 English Spanish translator connections Wildes Wilde (Bildung 202 (2020 197 201 (2016) 20 (202 19 (2016 2 (20 1 (201 (2 (

https://doi.org/10.1590/1517-106x/202325102

First report of putative Leishmania RNA virus 2 (LRV2) in Leishmania infantum strains from canine and human visceral leishmaniasis cases in the southeast of Brazil LRV2 LRV (LRV2 (LRV
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Rêgo, Felipe Dutra

; da Silva, Eduardo Sérgio

; Lopes, Valeriana Valadares

; Teixeira-Neto, Rafael Gonçalves

; Belo, Vinícius Silva

; Fonseca Júnior, Antônio Augusto

; Pereira, Diego Andrade

; Pena, Heber Paulino

; Laurenti, Márcia Dalastra

; Araújo, Gabriela V

; da Matta, Vânia Lúcia Ribeiro

; Chouman, Islam Hussein

; Burrin, Thainá Bergantin

; Sandoval, Carmen M

; Barrouin-Melo, Stella Maria

; de Pinho, Flaviane Alves

; de Andrade, Hélida Monteiro

; Nunes, Ramon Vieira

; Gontijo, Célia Maria Ferreira

; Soccol, Vanete Thomaz

; Klocek, Donnamae

; Grybchuk, Danyil

; Macedo, Diego Henrique

; do Monte-Neto, Rubens Lima

; Yurchenko, Vyacheslav

; Soares, Rodrigo Pedro

Memórias do Instituto Oswaldo Cruz

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 118 elocation e230071

Abstract: En | Text: En | PDF: En

BACKGROUND Leishmania RNA virus 1 (LRV1) is commonly found in South American Leishmania parasites belonging to the subgenus Viannia, whereas Leishmania RNA virus 2 (LRV2) was previously thought to be restricted to the Old-World pathogens of the subgenus Leishmania. OBJECTIVES In this study, we investigated the presence of LRV2 in strains of Leishmania (L.) infantum, the causative agent of visceral leishmaniasis (VL), originating from different hosts, clinical forms, and geographical regions. METHODS A total of seventy-one isolates were screened for LRV2 using semi-nested reverse transcription-polymerase chain reaction (RT-PCR) targeting the RNA-dependent RNA polymerase (RdRp) gene. FINDINGS We detected LRV2 in two L. infantum isolates (CUR268 and HP-EMO) from canine and human cases, respectively. MAIN CONCLUSIONS To the best of our knowledge, this is the first detection of LRV2 in the New World. LRV1 LRV (LRV1 Viannia (LRV2 OldWorld Old World study L (L. VL, VL , (VL) hosts forms regions seventyone seventy one seminested semi nested transcriptionpolymerase transcription RTPCR RT PCR (RT-PCR RNAdependent dependent RdRp (RdRp gene CUR268 CUR (CUR26 HPEMO HP EMO HP-EMO cases respectively knowledge (LRV (L (VL CUR26 (CUR2 CUR2 (CUR

https://doi.org/10.1590/0074-02760230071

Efeito da qualidade de luz na multiplicação e enraizamento in vitro de Cedrela odorata L. L
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos Junior, Cezário Ferreira dos

; Rech, Tássio Dresch

; Costa, Murilo Dalla

; Navroski, Marcio Carlos

; Boff, Pedro

; Boff, Mari Inês Carissimi

Ciência Florestal

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2022, Volume 32 N. 4 Pages 2419 - 2432

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A fonte de iluminação pode regular a morfogênese da cultura in vitro. O objetivo deste trabalho foi avaliar o efeito de quatro diferentes fontes de luz do tipo LEDs: branco, vermelho, azul e rosa (50% azul e 50% de vermelho) sob as fases de multiplicação e enraizamento de culturas in vitro de Cedrela odorata. Na fase de multiplicação, usou-se o meio de cultura MS adicionado a 8,8 μM de 6-benzilaminopurina (BAP) e 0,28 μM de ácido giberélico (GA3) sob efeito dos tipos de luz. Para o enraizamento, foi avaliada a interação dos tipos de luz sob duas concentrações de ácido indolbutírico AIB (4,9 e 9,8 μM). Na multiplicação, sob a luz LED branco obteve-se 3,9 brotações por explante, com maior comprimento dos brotos (2,1 mm) e ausência de oxidação. Da mesma forma, no enraizamento, as culturas sob luz LED branco foram superiores no número de raízes formadas e menor valor de oxidação. Verificou-se que a luz LED branco otimizou a fase de multiplicação e enraizamento na micropropagação dessa espécie florestal segundo este estudo. LEDs vermelho 50 (50 odorata usouse usou se 88 8 8, 6benzilaminopurina benzilaminopurina 6 BAP (BAP 028 0 28 0,2 GA3 GA (GA3 4,9 49 4 9 (4, 98 9, μM. . μM) obtevese obteve 39 3 3, explante 2,1 21 2 1 (2, mm oxidação forma Verificouse Verificou estudo 5 (5 02 0, (GA 4, (4 2, (2 (

Abstract The light source can regulate the morphogenesis of the in vitro culture. The objective of this work was to evaluate the effect of four different LED light: white, red, blue and pink (50% blue and 50% red) under the stages of multiplication and rooting of in vitro cultures of Cedrela odorata. In the multiplication phase, the MS culture medium was added to 8.8 μM of 6-benzylaminopurine (BAP) and 0.28 μM of gibberellic acid (GA3) under the effect of the types of light. Rooting was evaluated the interaction of light types under two concentrations of indolebutyric acid IBA (4.9 and 9.8 μM). In multiplication, under white LED light, 3.9 sprouts per explant were obtained, with longer sprouts (2.1 mm) and no oxidation. Similarly, at rooting, cultures under white LED light were higher in the number of roots formed and lower oxidation. It was found that white LED light optimized the multiplication and rooting phase in the micropropagation of this forest species according to this study. red 50 (50 odorata 88 8 8. 6benzylaminopurine benzylaminopurine 6 BAP (BAP 028 0 28 0.2 GA3 GA (GA3 4.9 49 4 9 (4. 98 9. μM. . μM) 39 3 3. obtained 2.1 21 2 1 (2. mm oxidation Similarly study 5 (5 02 0. (GA 4. (4 2. (2 (

https://doi.org/10.5902/1980509866513

Quality changes of acerola fruit harvested at different maturity stages and exposed to external ethylene
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ribeiro, Bruna Silva

; Ferreira, Maria Aparecida Rodrigues

; Nascimento, Pedro Henrique Dias

; Moura, Nadiane Raquel

; Silva, Danielly Souza

; Freitas, Sérgio Tonetto de

Revista Ceres

Journal Metrics
- Sobre o periódico
- SciELO Analytics

nov 2022, Volume 69 N. 6 Pages 685 - 692

Abstract: En | Text: En | PDF: En

ABSTRACT Although acerola (Malpighia emarginata D.C.) has been suggested to be a climacteric fruit, little is known about its sensitivity to exogenous ethylene. The objective of the study was to evaluate the quality changes of acerola fruit at two harvest maturity stages in response to external ethylene application. ‘Flor Branca’ and ‘Junko’ acerolas were harvested at the maturity stages 1 (green fruit with density>1 g cm-3) and 2(green fruit with density <1 g cm-3) and were treated with 0 or 1,000 µL L-1 of ethylene for 24 hours at 12 ºC.The fruit were stored at 12 ºC with relative humidity of 90-95% for 14 days. Both cultivars harvested at the maturity stage 2 showed skin color change from green to red during storage, which was not observed in fruit harvested at the maturity stage 1.External ethylene had no effect on 'Flor Branca' and 'Junko' acerolas respiration rate, flesh firmness, skin color, weight loss, soluble solids (SS), titratable acidity (AT), SS/AT ratio, and ascorbic acid contents. The classification of green acerolas by density was an effective approach to determine fruit harvest maturity for fresh consumption. Malpighia D.C. DC D C application Flor Branca ‘Junko Junko density1 density> cm3 cm 3 cm-3 2green < 1000 000 1,00 L1 L L- ºCThe 9095% 9095 90 95% 95 90-95 days storage 1External External 'Junko rate firmness loss SS, SS , (SS) AT, AT (AT) SSAT ratio contents consumption D.C cm- 100 00 1,0 909 9 90-9 (SS (AT 10 1, 90-

https://doi.org/10.1590/0034-737x202269060007

10.

WATERCRESS AND CHINESE CABBAGE IN A HYDROPONIC SYSTEM USING GROUNDWATER
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

LIRA, RAQUELE MENDES DE

; SILVA, ÊNIO FARIAS DE FRANÇA E

; SILVA, ALEXSANDRO OLIVEIRA DA

; MEDEIROS, PEDRO RÓBINSON FERNANDES DE

; SILVA, GERÔNIMO FERREIRA DA

; SOARES, HAMMADY RAMALHO E

Revista Caatinga

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2019, Volume 32 N. 4 Pages 1038 - 1047

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Em grande parte do semiárido é comum à presença de águas subterrâneas que apresentam concentrações de sais, tais que, muitas vezes, as tornam inapropriadas à produção agrícola de hortaliças de maneira convencional. Assim, objetivou-se com este trabalho avaliar o comportamento das culturas do agrião e da couve chinesa em hidroponia NFT (Nutrient Film Technique), submetidas à utilização de águas salobras subterrâneas. O experimento foi realizado no município Poço do Boi em Ibimirim-PE (8º32'15" de latitude Sul, 37º41'30" de longitude Oeste, e a uma altitude 431 m. Os tratamentos foram designados como: T1 - água de abastecimento; T2 - água sulfatada cálcica; T3 - água cloretada magnesiana S1; T4 - água cloretada cálcica; T5 - água cloretada sódica e T6 - água cloretada magnesiana S2. O delineamento experimental foi inteiramente casualizados, com seis tratamentos e quatro repetições, totalizando 24 parcelas experimentais para cada cultura. Avaliou-se as produções de massa de matéria fresca e seca da parte aérea, taxas de crescimento relativo e absoluto. O uso das diferentes águas influenciou de maneira negativa no crescimento e rendimento da cultura do agrião e da couve chinesa, sendo a água cloretada cálcica a mais indicada para a produção do agrião. Já para a couve chinesa nenhuma das águas utilizadas é aconselhada para produção. As menores taxas de crescimento (5,88 % para o agrião e 0,75 % pra o couve) da massa de matéria fresca foram obtidas com o uso da água cloretada magnesiana S2.

ABSTRACT Groundwater with high salt concentrations is common in the semiarid region of Brazil. It often makes them inappropriate to conventional agricultural production of vegetables. Therefore, the objective of this work was to evaluate watercress and Chinese cabbage crops under a nutrient film technique (NFT) hydroponic system using brackish groundwater. The experiment was carried out in the Poço do Boi region, in Ibimirim, Pernambuco, Brazil (8º32'15"S, 37º41'30"W, and altitude of 431 m). The treatments used were: public water (T1), calcium sulfate water (T2), magnesium chloride water S1 (T3), calcium chloride water (T4), sodium chloride water (T5), and magnesium chloride water S2 (T6). A completely randomized experimental design was used, with six treatments and four replications, totaling 24 plots for each crop. The fresh and dry shoot weights and rates of relative and absolute growths were analyzed. The different waters used affected negatively the growth and yield of the watercress and Chinese cabbage plants. The calcium chloride water was the most suitable for the watercress production. However, none of the groundwaters used could be recommended for production of Chinese cabbage. The lowest growth rates (5.88% to watercress and 0.75% to Chinese cabbage) of the fresh matter were found with the use of magnesium water.

https://doi.org/10.1590/1983-21252019v32n420rc 1332 downloads

11.

GENETIC GAINS IN THE POPCORN POPULATION UENF-14: DEVELOPING THE NINTH GENERATION OF INTRAPOPULATION RECURRENT SELECTION
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

GUIMARÃES, AMANDA GONÇALVES

; AMARAL JÚNIOR, ANTÔNIO TEIXEIRA DO

; PENA, GUILHERME FERREIRA

; ALMEIDA FILHO, JANEO EUSTÁQUIO DE

; PEREIRA, MESSIAS GONZAGA

; SANTOS, PEDRO HENRIQUE ARAÚJO DINIZ

Revista Caatinga

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2019, Volume 32 N. 3 Pages 625 - 633

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A ocorrência da correlação negativa entre produtividade de grãos (PG) e capacidade de expansão (CE) no milho-pipoca contribui para dificultar o processo seletivo. No intento de contornar esse inconveniente, foi proposto, o caráter de importância, volume por pipoca expandida por hectare (VP). O objetivo deste estudo foi desenvolver o nono ciclo da população UENF-14 de milho-pipoca, estimar o efeito direto e indireto de VP e averiguar o progresso genéticos entre todos os ciclos seletivos. Duzentas progênies endogâmicas foram obtidas e avaliadas em blocos casualizados, com arranjos em repetições dentro de sets, sendo nove sets, oito constituídos por 25 progênies e um set com todos ciclos anteriores (oito) com três repetições. Avaliou-se a altura média da planta, prolificidade, peso de cem grãos, produtividade de grãos, capacidade de expansão e volume por pipoca expandida por hectare. Realizou-se a análise de trilha para desdobrar os efeitos diretos e indiretos e o índice de seleção Mulamba e Mock para seleção de quarenta progênies superiores. Houve variabilidade genética entre as progênies para todas características. Existe relação de causa e efeito entre o VP com a PG e CE, permitindo ganhos simultâneos com a seleção indireta. A seleção das progênies superiores com a utilização do peso atribuído por alternativas proporcionou maiores ganhos preditos de VP (20,73%). As médias obtidas em todos os ciclos indicaram aumentos, demonstrando a eficiência do uso da seleção recorrente em programas de melhoramento de milho-pipoca.

ABSTRACT The occurrence of negative correlations between grain yield (GY) and popping expansion (PE) in popcorn complicates the selection process. In an attempt to overcome this inconvenience, we proposed the use of the importance characteristic volume per popcorn per hectare (PV). The objectives of this study were to develop the ninth cycle of the UENF-14 popcorn population, to estimate the direct and indirect effects of PV and to verify the genetic progress among all selective cycles. We obtained and evaluated 200 inbred progenies in randomised blocks arranged in replicates within sets, with nine sets consisting of 25 progenies and one set with all previous eight cycles with three replicates. The average height of the plants, prolificacy, 100-grain weight, grain yield, grain popping expansion and volume per popcorn per hectare were evaluated. Track analysis was performed to determine the direct and indirect effects, and the Mulamba and Mock selection index was calculated for the selection of the 40 superior progenies. There was genetic variability among progenies in all evaluated traits, with a cause-and-effect relationship between PV with GY and PE, allowing simultaneous gains with indirect selection. The selection of the best progenies was more effective when using arbitrarily assigned weights, which provided higher predicted gains for PV (20.73%). The means obtained in all cycles indicated increases, demonstrating the efficiency of using continuous recurrent selection in popcorn breeding programs.

https://doi.org/10.1590/1983-21252019v32n307rc 622 downloads

12.

Effectiveness of sucroferric oxyhydroxide in patients on on-line hemodiafiltration in real-world clinical practice: A retrospective study
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ferreira, Aníbal

; Pinto, Bruno

; Navarro, David

; Aniceto, João

; Neves, Pedro L

; Ponce, Pedro

Brazilian Journal of Nephrology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2019, Volume 41 N. 2 Pages 224 - 230

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Introdução: A hiperfosfatemia é uma grave consequência da doença renal crônica associada a risco aumentado de doença cardiovascular. O controle dos níveis séricos de fósforo dos pacientes em diálise é um desafio que requer, na maioria dos casos, o uso de quelantes de fosfato (QF). Parte da dificuldade se deve à baixa adesão ao tratamento oriunda do grande número de medicamentos receitados para esse grupo de pacientes. Objetivo: Avaliar a real eficácia do oxihidróxido sucroférrico (OHS) no controle dos níveis séricos de fósforo e determinar a carga de comprimidos associada. Métodos: Estudo multicêntrico, quantitativo, retrospectivo, antes e depois conduzido com pacientes em hemodiafiltração on-line. Pacientes remanejados para OHS como parte dos cuidados de rotina foram incluídos no estudo. Tratamento com QF, número de comprimidos, níveis séricos de fósforo, reposição férrica endovenosa e dosagens foram registrados mensalmente durante seis meses de tratamento com QF ou OHS. Resultados: Foram incluídos 42 pacientes no estudo. Após a mudança de QF para OHS, o número de comprimidos prescritos por dia caiu em 67%, de seis para duas unidades diárias (p < 0,001). A frequência de ingestão de comprimidos caiu de três para duas vezes ao dia (p < 0,001). Durante o tratamento com OHS, o percentual de pacientes com fósforo sérico ≤ 5,5 mg/dL aumentou de 33,3% no início para 45% após seis meses de tratamento. Conclusão: Durante os seis meses de seguimento com OHS, os níveis séricos de fósforo foram controlados com um terço dos comprimidos por dia em relação aos tratamentos com outros QF.

Abstract Introduction: Hyperphosphatemia is a serious consequence of chronic kidney disease and has been associated with an increased risk for cardiovascular disease. Controlling serum phosphorus levels in patients on dialysis is a challenge for the clinicians and implies, in most cases, the use of phosphate binders (PB). Part of the reason for this challenge is poor adherence to treatment because of the high pill burden in this patient group. Objective: To assess the real-world effectiveness of sucroferric oxyhydroxide (SO) in controlling serum phosphorus levels and determine the associated pill burden. Methods: A multicenter, quantitative, retrospective, before-after study was conducted with patients receiving online hemodiafiltration. Patients who switched to SO as a part of routine care were included in the study. PB treatment, number of pills, serum phosphorus levels, and intravenous iron medication and dosage were collected monthly during the six months of treatment with either PB or SO. Results: A total of 42 patients were included in the study. After switching from a PB to SO, the prescribed pills/day was reduced 67% from 6 pills/day to 2 pills/day (p < 0.001) and the frequency of pill intake was lowered from 3 times/day to 2 times/day (p < 0.001). During the treatment with SO, the proportion of patients with serum phosphorus ≤ 5.5 mg/dL increased from 33.3% at baseline to 45% after six months of treatment. Conclusion: During the six-month follow-up with SO, serum phosphorus levels were controlled with one third of the pills/day compared to other PB.

https://doi.org/10.1590/2175-8239-jbn-2018-0142 693 downloads

13.

Avaliação da atividade antibacteriana e moduladora dos extratos metanólico e hexânico da folha de Allium cepa
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Cruz, Ana J. F

; Brito, Israel P

; Sobral, Maria A. F

; Sousa, Amanda T. L

; Alves, Erivania F

; Andreza, Raul S

; Ferreira, Sarah S

; Costa, Roberta O

; Figueredo, Fernando G

; Tam Guedes, Tássia

; Macêdo, Rakel O

; Ribeiro, Tatianne R. G

; Leandro, Livia MG

; Oliveira, Cícera D. M

; Tintino, Saulo R

; Costa, Maria S

; Aquino, Pedro E. A

Revista Ciencias de la Salud

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2016, Volume 14 N. 2 Pages 191 - 200

Abstract: Es En Pt | Text: Es En Pt | PDF: Es | PDF: En | PDF: Pt

Introducción: la resistencia bacteriana ha crecido significativamente en los últimos años, por lo que es necesaria la búsqueda de nuevas dianas terapéuticas. En este contexto, los compuestos bioactivos presentes en algunas plantas medicinales pueden tener diversas actividades biológicas, tales como la acción antimicrobiana. Allium cepa, conocida como la cebolla, es utilizada, popularmente de forma etnofarmacológica para el tratamiento de diversas enfermedades tales como la tuberculosis, la diabetes, la hipertensión, el reumatismo y así sucesivamente. Objetivo: el objetivo de este estudio fue evaluar la actividad antimicrobiana y moduladora de extractos de metanol y hexano de Allium cepa frente a las cepas de bacterias y normas multirresistentes. Materiales y métodos: por los métodos microdilución y modulación con antibióticos. Resultados: los resultados mostraron una variación de MIC(concentración mínima inhibitoria) de 128 a ≥ 1024μg / mL dos extractos metanólicos A. cepa (EMAC) y hexano de A. cepa (EHAC). En la modulación con aminoglucósidos (amikacina y gentamicina), se observaron efectos sinérgicos y antagónicos de EHAC y EMAC, frente a las cepas de Escherichia coli y Staphylococcus aureus multirresistente. Se necesitan nuevas investigaciones para un posible uso de plantas medicinales combinadas con la cara antimicrobiana de las cepas patógenas. Conclusión: a partir de estos resultados, se sugiere que los productos naturales son fuentes prometedoras en la lucha contra la resistencia bacteriana.

Introduction: Bacterial resistance has grown significantly in recent years, making the search for new antibiotics imperative. Bioactive compounds in some medicinal plants may exhibit various biological activities as antimicrobial activity. Allium cepa, popularly known as onion, is ethnopharmacologically used for treating various diseases, such as tuberculosis, diabetes, hypertension and rheumatism; it is also considered a powerful bactericide. Objective: The main objective of this study was to evaluate the antimicrobial and modulating activity of methanol and hexane extracts of A. cepa against the strains of multiresistant bacteria. Materials and methods: Microdilution and modulation of antibiotics. Results: The results showed a variation in the MIC (Minimum Inhibitory Concentration) from 128 to ≥ 1024μg / mL between A. cepa methanol (EMAC) and A. cepa hexane (EHAC) extracts. Modulation with aminoglycosides (gentamicin and amikacin) have proved to have antagonistic effects of the extracts sinérgicose EHAC and EMAC against strains of multiresistant Escherichia coli and Staphylococcus aureus. Further research is needed related to the use of medicinal plants combined with antimicrobials against pathogenic strains. Conclusion: Through these results it can be inferred that natural products could constitute a promising source for combating bacterial resistance.

Introdução: A resistência bacteriana tem crescido significativamente nos últimos tempos, tornando-se imprescindível a busca por novos alvos terapêuticos. Nesse contexto, compostos bioativos presentes em algumas plantas medicinais podem apresentar várias atividades biológicas, como ação antimicrobiana. Allium cepa conhecida popularmente como cebola é utilizada de maneira etnofarmacológica há muito tempo para o tratamento de diversas enfermidades: tuberculose, diabetes, hipertensão, reumatismo e assim por diante. Objetivo: O principal objetivo deste trabalho foi avaliar a atividade antimicrobiana e modulatória dos extratos metanólico e hexânicoda das folhas A. cepa frente às cepas de bactérias padrões e multirresistentes. Materiais e métodos: Pelos métodos e microdiluição e modulação com antibióticos. Resultados: Os resultados deste estudo demonstraram uma variação no CMI (Concentração Inibitória Mínima) de 128 a ≥ 1024 μg/mL dos extratos metanólico de A. cepa (EMAC) e hexânico de A. cepa (EHAC). Na modulação com os aminoglicosídeos (amicacina e gentamicina) observaram-se efeitos sinérgicos e antagônicos dos extratos EHAC e EMAC frente às cepas Escherichia coli e Staphylococcus aureus de linhagem multirresistente. Novas pesquisas são necessárias para uma possível utilização das plantas medicinais combinadas com os antimicrobianos frente às linhagens patogênicas. Conclusão: Através desses resultados sugere-se que os produtos naturais representam fontes promissoras no combate à resistência bacteriana.

https://doi.org/10.12804/revsalud14.02.2016.04 1367 downloads

14.

ERICA: prevalence of metabolic syndrome in Brazilian adolescents
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Kuschnir, Maria Cristina C

; Bloch, Katia Vergetti

; Szklo, Moyses

; Klein, Carlos Henrique

; Barufaldi, Laura Augusta

; Abreu, Gabriela de Azevedo

; Schaan, Beatriz

; Veiga, Gloria Valeria da

; Silva, Thiago Luiz Nogueira da

; Vasconcellos, Maurício T L de

; Moraes, Ana Júlia Pantoja de

; Oliveira, Ana Mayra Andrade de

; Tavares, Bruno Mendes

; Oliveira, Cecília Lacroix de

; Cunha, Cristiane de Freitas

; Giannini, Denise Tavares

; Belfort, Dilson Rodrigues

; Santos, Eduardo Lima

; Leon, Elisa Brosina de

; Oliveira, Elizabete Regina Araújo

; Fujimori, Elizabeth

; Borges, Ana Luíza

; Magliano, Erika da Silva

; Vasconcelos, Francisco de Assis Guedes

; Azevedo, George Dantas

; Brunken, Gisela Soares

; Guimarães, Isabel Cristina Britto

; Faria Neto, José Rocha

; Oliveira, Juliana Souza

; Carvalho, Kenia Mara B de

; Gonçalves, Luis Gonzaga de Oliveira

; Monteiro, Maria Inês

; Santos, Marize M

; Muniz, Pascoal Torres

; Jardim, Paulo César B Veiga

; Ferreira, Pedro Antônio Muniz

; Montenegro Jr, Renan Magalhães

; Gurgel, Ricardo Queiroz

; Vianna, Rodrigo Pinheiro

; Vasconcelos, Sandra Mary

; Martins, Stella Maris Seixas

; Goldberg, Tamara Beres Lederer

Revista de Saúde Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2016, Volume 50 Suppl. 1 elocation 11s

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO OBJETIVO Determinar a prevalência de síndrome metabólica e de seus componentes em adolescentes brasileiros. MÉTODOS Foram avaliados 37.504 adolescentes, participantes do Estudo de Riscos Cardiovasculares em Adolescentes (ERICA), estudo transversal de âmbito nacional e de base escolar. Os adolescentes, de 12 a 17 anos de idade, residiam em municípios com mais de 100 mil habitantes. A amostra foi estratificada e conglomerada em escolas e turmas. Os critérios da International Diabetes Federation foram utilizados para definir síndrome metabólica. Prevalências de síndrome metabólica foram estimadas segundo sexo, faixa etária, tipo de escola e estado nutricional. RESULTADOS Dos 37.504 adolescentes, 50,2% eram do sexo feminino; 54,3% tinham de 15 a 17 anos e 73,3% estudavam em escolas públicas. A prevalência nacional de síndrome metabólica foi 2,6% (IC95% 2,3-2,9), discretamente maior no sexo masculino e naqueles de 15 a 17 anos na maioria das macrorregiões. A prevalência foi a maior nos residentes na macrorregião Sul, nas adolescentes mais jovens e nos adolescentes mais velhos. A prevalência foi maior nas escolas públicas (2,8% [IC95% 2,4-3,2]) que nas escolas privadas (1,9% [IC95% 1,4-2,4]) e nos adolescentes obesos em comparação aos não obesos. As combinações de componentes mais frequentes, respondendo por 3/4 das combinações, foram: circunferência de cintura elevada, HDL-colesterol baixo e pressão arterial elevada, seguida de circunferência da cintura elevada, lipoproteína de alta densidade (HDL-c) baixo e triglicerídeos elevados, e wpor circunferência da cintura elevada, HDL baixa e triacilgliceróis e pressão arterial elevados. A HDL baixa foi o segundo componente mais frequente, mas a maior prevalência de síndrome metabólica (26,8%) foi observada na presença de triglicerídeos elevado. CONCLUSÕES O ERICA é o primeiro estudo nacional a apresentar prevalências de síndrome metabólica e descrever a participação dos seus componentes. Apesar de a prevalência da síndrome metabólica ter sido baixa, as altas prevalências de alguns componentes e de participação de outros na composição da síndrome torna importante o diagnóstico precoce de tais alterações, mesmo que não agrupadas na síndrome metabólica.

ABSTRACT OBJECTIVE To determine the prevalence of metabolic syndrome and its components in Brazilian adolescents. METHODS We evaluated 37,504 adolescents who were participants in the Study of Cardiovascular Risks in Adolescents (ERICA), a cross-sectional, school-based, national study. The adolescents, aged from 12 to 17 years, lived in cities with populations greater than 100,000 inhabitants. The sample was stratified and clustered into schools and classes. The criteria set out by the International Diabetes Federation were used to define metabolic syndrome. Prevalences of metabolic syndrome were estimated according to sex, age group, school type and nutritional status. RESULTS Of the 37,504 adolescents who were evaluated: 50.2% were female; 54.3% were aged from 15 to 17 years, and 73.3% were from public schools. The prevalence of metabolic syndrome was 2.6% (95%CI 2.3-2.9), slightly higher in males and in those aged from 15 to 17 years in most macro-regions. The prevalence was the highest in residents from the South macro-region, in the younger female adolescents and in the older male adolescents. The prevalence was higher in public schools (2.8% [95%CI 2.4-3.2]), when compared with private schools (1.9% [95%CI 1.4-2.4]) and higher in obese adolescents when compared with nonobese ones. The most common combinations of components, referring to 3/4 of combinations, were: enlarged waist circumference (WC), low HDL-cholesterol (HDL-c) and high blood pressure; followed by enlarged WC, low HDL-c and high triglycerides; and enlarged WC, low HDL-c, high triglycerides and blood pressure. Low HDL was the second most frequent component, but the highest prevalence of metabolic syndrome (26.8%) was observed in the presence of high triglycerides. CONCLUSIONS ERICA is the first Brazilian nation-wide study to present the prevalence of metabolic syndrome and describe the role of its components. Despite the prevalence of Metabolic Syndrome being low, the high prevalences of some components and participation of others in the syndrome composition shows the importance of early diagnosis of this changes, even if not grouped within the metabolic syndrome.

https://doi.org/10.1590/s01518-8787.2016050006701 1789 downloads

15.

ERICA: prevalences of hypertension and obesity in Brazilian adolescents
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Bloch, Katia Vergetti

; Klein, Carlos Henrique

; Szklo, Moyses

; Kuschnir, Maria Cristina C

; Abreu, Gabriela de Azevedo

; Barufaldi, Laura Augusta

; Veiga, Gloria Valeria da

; Schaan, Beatriz

; Silva, Thiago Luiz Nogueira da

; Moraes, Ana Julia Pantoja

; Oliveira, Ana Mayra Andrade de

; Tavares, Bruno Mendes

; Magliano, Erika da Silva

; Oliveira, Cecília Lacroix de

; Cunha, Cristiane de Freitas

; Giannini, Denise Tavares

; Belfort, Dilson Rodrigues

; Santos, Eduardo Lima

; Leon, Elisa Brosina de

; Oliveira, Elizabete Regina Araújo

; Fujimori, Elizabeth

; Borges, Ana Luíza

; Vasconcelos, Francisco de Assis Guedes

; Azevedo, George Dantas

; Brunken, Gisela Soares

; Guimarães, Isabel Cristina Britto

; Faria Neto, José Rocha

; Oliveira, Juliana Souza

; Carvalho, Kenia Mara B. de

; Gonçalves, Luis Gonzaga de Oliveira

; Monteiro, Maria Inês

; Santos, Marize M.

; Jardim, Paulo César B. Veiga

; Ferreira, Pedro Antônio Muniz

; Montenegro Jr., Renan Magalhães

; Gurgel, Ricardo Queiroz

; Vianna, Rodrigo Pinheiro

; Vasconcelos, Sandra Mary

; Goldberg, Tamara Beres Lederer

Revista de Saúde Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2016, Volume 50 Suppl. 1 elocation 9s

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO OBJETIVO Estimar as prevalências de hipertensão arterial e obesidade e a fração atribuível populacional de hipertensão arterial devida à obesidade em adolescentes brasileiros. MÉTODOS Foram avaliados dados dos participantes do Estudo de Riscos Cardiovasculares em Adolescentes, estudo seccional l nacional de base escolar. A amostra foi dividida em 32 estratos geográficos e conglomerados de escolas e turmas, com representatividade nacional, macrorregional e de capitais. Obesidade foi classificada pelo índice de massa corporal segundo idade e sexo. Considerou-se hipertensão arterial a média da pressão arterial sistólica ou diastólica maior ou igual ao percentil 95 da curva de referência. Foram estimadas prevalências e intervalos de confiança de 95% (IC95%) de hipertensão arterial e de obesidade, nacionais e nas macrorregiões do País, por sexo e grupo etário, assim como as frações de hipertensão atribuíveis à obesidade na população. RESULTADOS Foram avaliados 73.399 estudantes, 55,4% do sexo feminino, com média de idade 14,7 anos (DP = 1,6). A prevalência de hipertensão arterial foi 9,6% (IC95% 9,0-10,3); sendo as mais baixas observadas nas regiões Norte, 8,4% (IC95% 7,7-9,2) e Nordeste, 8,4% (IC95% 7,6-9,2) e a mais alta na região Sul, 12,5% (IC95% 11,0-14,2). A prevalência de obesidade foi 8,4% (IC95% 7,9-8,9), mais baixa na região Norte e mais alta na Sul. As prevalências de hipertensão arterial e obesidade foram maiores no sexo masculino. Adolescentes com obesidade tiveram prevalência de hipertensão arterial mais elevada, 28,4% (IC95% 25,5-31,2), do que aqueles com sobrepeso, 15,4% (IC95% 13,8-17,0), ou eutróficos, 6,3% (IC95% 5,6-7,0). A fração de hipertensão arterial atribuível à obesidade foi de 17,8%. CONCLUSÕES O ERICA foi o primeiro estudo brasileiro com representatividade nacional a estimar a prevalência de hipertensão arterial aferida em adolescentes. A fração da prevalência de hipertensão arterial atribuível à obesidade mostrou que cerca de 1/5 dos hipertensos poderiam não ser hipertensos se não fossem obesos.

ABSTRACT OBJECTIVE To estimate the prevalence of arterial hypertension and obesity and the population attributable fraction of hypertension that is due to obesity in Brazilian adolescents. METHODS Data from participants in the Brazilian Study of Cardiovascular Risks in Adolescents (ERICA), which was the first national school-based, cross-section study performed in Brazil were evaluated. The sample was divided into 32 geographical strata and clusters from 32 schools and classes, with regional and national representation. Obesity was classified using the body mass index according to age and sex. Arterial hypertension was defined when the average systolic or diastolic blood pressure was greater than or equal to the 95th percentile of the reference curve. Prevalences and 95% confidence intervals (95%CI) of arterial hypertension and obesity, both on a national basis and in the macro-regions of Brazil, were estimated by sex and age group, as were the fractions of hypertension attributable to obesity in the population. RESULTS We evaluated 73,399 students, 55.4% female, with an average age of 14.7 years (SD = 1.6). The prevalence of hypertension was 9.6% (95%CI 9.0-10.3); with the lowest being in the North, 8.4% (95%CI 7.7-9.2) and Northeast regions, 8.4% (95%CI 7.6-9.2), and the highest being in the South, 12.5% (95%CI 11.0-14.2). The prevalence of obesity was 8.4% (95%CI 7.9-8.9), which was lower in the North region and higher in the South region. The prevalences of arterial hypertension and obesity were higher in males. Obese adolescents presented a higher prevalence of hypertension, 28.4% (95%CI 25.5-31.2), than overweight adolescents, 15.4% (95%CI 17.0-13.8), or eutrophic adolescents, 6.3% (95%CI 5.6-7.0). The fraction of hypertension attributable to obesity was 17.8%. CONCLUSIONS ERICA was the first nationally representative Brazilian study providing prevalence estimates of hypertension in adolescents. Regional and sex differences were observed. The study indicates that the control of obesity would lower the prevalence of hypertension among Brazilian adolescents by 1/5.

https://doi.org/10.1590/s01518-8787.2016050006685 1511 downloads

Showing

itens per page

Page of 2 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »